JP3549373B2 - Joining structure and joining method of steel members - Google Patents

Joining structure and joining method of steel members Download PDF

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Publication number
JP3549373B2
JP3549373B2 JP25623397A JP25623397A JP3549373B2 JP 3549373 B2 JP3549373 B2 JP 3549373B2 JP 25623397 A JP25623397 A JP 25623397A JP 25623397 A JP25623397 A JP 25623397A JP 3549373 B2 JP3549373 B2 JP 3549373B2
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steel sheet
sheet pile
reinforcing member
steel
web
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JPH1181491A (en
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和之 田崎
宗弘 石田
貴光 大野
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Nippon Steel Corp
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Nippon Steel Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、土木建築分野における土留め壁、地下構造物壁、基礎構造、トンネル構造に用いる鋼製部材等、各種鋼製部材の接合構造と接合工法に係り、特に現場での上下部材の位置合わせと鉛直精度出しに適した接合工法に関するものである。
【０００２】
【従来の技術】
この種の従来技術の一例として、鋼製の上下部材を接合するために用いられるエレクションピースがある。図１４、図１５に示すようにこのエレクションピース２は、主に建築構造物の柱、例えば同図に示すようなウエブ５とフランジ６からなるＨ形の柱１同士を上下に現場で接合し、溶接７を行なう場合に使用される施工治具であり、同図に示されるように、現場で柱１の鉛直精度出しを行った後、この柱１の接合端部に溶接で固着された上下の取付けピース３を２枚のエレクションピース２で挟み、このエレクションピース２間をボルト４により接合するものである。
【０００３】
前記エレクションピース２の欠点は、あくまでも上下の柱１同士を固定しておくためだけの施工治具であり、柱同士の鉛直精度出しは、現場で実施する必要がある点である。
また、施工現場での柱１同士の鉛直位置合わせは、柱１を吊下げたクレーン操作による作業で、所定位置に部材をもっていくため、位置合わせに要する時間が必要であった。
【０００４】
【発明が解決しようとする課題】
本発明に最も近い従来技術としては、前述のエレクションピースのような柱同士を現場で接合する場合に使用する施工治具が存在するだけである。しかし、この施工治具を用いる鋼製部材の接合工法では、現場での鉛直精度出しが必要であり、クレーン操作により鋼製部材の鉛直精度出し作業に困難を伴ない、そのため多大な作業時間がかかるという欠点があった。
本発明は前記の課題を解決した鋼製部材の接合工法を提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明に係る第１の発明は、鋼矢板の側面に、ウエブの両端にフランジを有する補強部材の一方のフランジが固着されており、前記鋼矢板の上下方向の一端部が前記補強部材の一端部より突出しており、前記鋼矢板の上下方向の他端部が前記補強部材の他端部より後退位置しており、前記補強部材の各フランジには、相対する前記鋼矢板の上下端部を当接するとき、互いに面接触する芯出し治具が複数設けられている構成を特徴とする。
【０００６】
第２の発明は、鋼矢板の側面に、ウエブの両端にフランジを有する補強部材の一方のフランジを固着し、先行打設した下側の鋼矢板の上端部に、後から打設する上側の鋼矢板を吊り下げて、これら上下の鋼矢板および補強部材の上下端部を接合するに際し、前記補強部材より上方に突出している下側の鋼矢板の上端部をガイドとして、上側の鋼矢板の下端部よりも下方に突出している上側の補強部材を吊り下し、上側と下側の各補強部材のフランジにそれぞれ複数設けた芯出し治具を面接触させることを特徴とする。
【０００７】
第３の発明は、請求項１記載の鋼製部材の接合構造において、ウエブの両端にフランジを有する補強部材に代えて、ウエブの一端にフランジを有する補強部材を構成して、このウエブの他端を鋼矢板の側面に固着し、前記補強部材のフランジと前記鋼矢板には、上下方向に相対する前記鋼矢板の上下端部を当接するとき、互いに面接触する芯出し治具が複数設けられている構成を特徴とする。
【０００８】
第４の発明は、請求項２記載の鋼製部材の接合工法において、上下の鋼矢板に固着した、ウエブの両端にフランジを有する補強部材に代えて、ウエブの一端にフランジを有する補強部材を構成して、このウエブの他端を鋼矢板の側面に固着し、上側の鋼矢板を吊り下げて上下の鋼矢板の端部を開先を有して接合するに際し、前記補強部材より上方に突出している下側の鋼矢板の上端部をガイドとして、上側の鋼矢板の下端面よりも下方に突出している上側の補強部材を吊り下し、上側の各補強部材のフランジと、下側の各鋼矢板にそれぞれ複数設けた芯出し治具を面接触させることを特徴とする。
【０００９】
第５の発明は、前部鋼矢板と後部鋼矢板の側面同士がウエブを介して固着されており、前記各鋼矢板の上下方向一端部において、当該前部鋼矢板の端部が、後部鋼矢板の端部より突出しており、上下方向他端部において、前部鋼矢板の端部が後部鋼矢板の端部より後退位置しており、前部と後部の各鋼矢板には、上下方向に相対する前部鋼矢板およびウエブの上下端部を当接するとき、互いに面接触する芯出し治具が複数設けられている構成を特徴とする。
【００１０】
第６の発明は、前部鋼矢板と後部鋼矢板の側面同士がウエブを介して固着されており、下側に位置する前部鋼矢板の上端部に、上側の前部鋼矢板を吊下げて上下の鋼矢板の上下端部を接合するに際し、後部鋼矢板の上端部より上方に突出している下側の前部鋼矢板の上端部をガイドとして、後部鋼矢板の下端部が前部鋼矢板の下端部よりも下方に突出している上側の前部鋼矢板を吊り下し、上側と下側の前部鋼矢板と後部鋼矢板にそれぞれ複数設けた芯出し治具を面接触させることを特徴とする。
【００１１】
本発明によると、先行打設した下側の鋼製部材の上方から上側の鋼製部材を吊り下げて、上下側の鋼製部材を接合するに際し、下側の鋼矢板の上端部を建込みガイドとして、位置合わせを行いながら、上側の鋼矢板の下端部を所定の位置に確実に吊り下すことができ、かつ上下側の複数の芯出し治具を面接触させることで、鉛直精度出し作業は終了し、現場での部材の位置合わせ作業と鉛直精度出し作業が迅速化及び簡略化される。
【００１２】
【発明の実施の形態】
以下本発明の実施形態を図を参照して説明する。
図１〜図５には第１実施形態に係る鋼製部材１０が示されている。この鋼製部材１０は、両側縁に継手部１２を有する鋼矢板１１と補強部材１３とから構成されている。補強部材１３は、ウエブ１４の両端にフランジ１５が固着されたＨ形鋼で構成され、一方のフランジ１５が鋼矢板１１の側面１１ａに固着されている。
【００１３】
鋼矢板１１の一端部（図３，図４における下側の鋼矢板１１の上端部）１６は、前記補強部材１３の端部（図における上端部）１７よりも、約１００ｍｍ程度上方に突出して設けられており、鋼矢板１１の他端部（図３，図４にをおける上側の鋼矢板１１の下端部）１６ａは、前記補強部材１３の端部（図における下端部）１７ａよりも上方に後退位置して設けられている。
【００１４】
また、補強部材１３の両端部（図における上端部及び下端部）１７，１７ａにおけるフランジ１５の側端面１８には、芯出し治具２０が溶接又はボルト接合により固着されていて、この芯出し治具２０の当接端面２０ａは、フランジ１５の両端部１７，１７ａの端面より０．１〜２ｍｍ突出して固着してある。
【００１５】
芯出し治具２０は、施工現場における上下の連壁部材の鉛直精度出し作業の簡略化を目的として設けられるもので、本発明において主要素の一つをなし、その配置位置は正確になされている。このため、芯出し治具２０の取付けに際しては、予め製作、加工工場において、鋼矢板１１と補強部材１３との部材同士を仮接続して芯通しを行ない、鉛直精度を確認したうえ、芯出し治具２０を所定位置に固着する。したがって、現場では上下の芯出し治具２０同士の当接面２０ａの面接触を確認する作業のみによって、予め確認しておいた上下の連壁部材１０間の鉛直精度の再現が可能である。
【００１６】
第１実施形態において、上側の鋼製部材をクレーンで吊り下げて、先行して建込んだ下側の鋼製部材の上端部に接合する際、補強部材１３の上端より突出した下側の鋼矢板１１の上端部が、建込みガイドとなるので、上側の鋼矢板１１の下端部より突出した補強部材１３の一方のフランジ１５を下側の鋼矢板１１の上端部の側面に沿わせてスライドさせながら吊り下ろすことで、上側の鋼矢板１１は不安定に横揺せず、下側の鋼矢板１１に対する位置合わせを円滑かつ確実に行なわせることたできる。さらに、下側と上側の４つの芯出し治具２０の当接面２０ａを接触させることで、上下側の鋼製部材の端部の鉛直精度出し作業を迅速かつ簡単に行なうことができる。
【００１７】
図６〜図９には、本発明の第２実施形態に係る鋼製部材１０が示されている。この第２実施形態では、第１実施形態におけるウエブ１４の両端にフランジ１５を有する補強部材１３に代えて、ウエブ１４の一端にのみフランジ１５を有する補強部材１３ａが構成されており、この補強部材１３ａにおけるウエブ１４の他端縁１４ａを鋼矢板１１の側面１１ａに溶接７で固着する点が第１実施形態と相異している。また、前記の構成の差異に伴なって、４つの芯出し治具２０のうちの２つの芯出治具２０が、鋼矢板１１の上部の側面と下部の側面にそれぞれ固着されている。他の構成は第１実施形態と同じであるので、これと同等要素には同一符号を付して説明を省略する。
【００１８】
この第２実施形態において、先行打設した下側の鋼製部材の上方から、上側の鋼製部材をクレーンで吊り下ろし、４つの芯出し治具２０の当接面２０ａを接触させることで、第１実施形態と同様上下側の鋼製部材の端部の位置合わせ作業を迅速かつ簡単に行なうことができる。他の作用、効果は第１実施形態と同じである。
【００１９】
図１０〜図１３（Ａ），（Ｂ）には、本発明の第３実施形態に係る鋼製部材１０が示されている。この第３実施形態では、第１実施形態におけるウエブ１４の両端にフランジ１５を有する補強部材１３に代えて、鋼矢板（以下では前部直線形鋼矢板という）１１と平行に後部直線形鋼矢板１１ｂを配設し、両鋼矢板１１，１１ｂ間をウエブ１４と溶接７とにより固着した連続壁部材１０が構成されている。
【００２０】
また、この第３実施形態において、下側の鋼製部材１０では前部鋼矢板１１の上端部１６が、後部鋼矢板１１ｂの上端部１６および、この上端部１６と同じ高さのウエブ１４の上端部１７よりも上方に突出している。また、上側の鋼製部材１０では、前部鋼矢板１１の下端部１６ａが後部鋼矢板１１ｂの下端部１６ａおよびこの下端部１６ａと同じ高さのウエブ１４の下端部１７ａよりも上方に後退位置している。
【００２１】
また、第３実施形態では、４つの芯出し治具２０が、前側と後側の各鋼矢板１１，１１ｂの上部の側面と下部の側面にそれぞれ固着されている。他の構成は第２実施形態と同じであるので、これと同等要素には同一符号を付して説明を省略する。
【００２２】
この第３実施形態において、先行打設する下側の鋼製部材の上方から、上側の鋼製部材をクレーンを用いて吊り下ろし、４つの芯出し治具２０の当接面２０ａの面接触を確認することで、第１、第２実施形態と同様上下側の鋼製部材の端部の位置合わせ作業を迅速かつ簡単に行なうことができる。他の作用、効果は第２実施形態と同じである。
【００２３】
なお、図１３（Ｃ）には、同図（Ｂ）の変形例が示されている。つまり、図（Ｃ）に示すように、上下側に位置する前後部の鋼矢板１１，１１ｂの一方（図では上側）に設ける芯出し治具２０の当接面２０ａを上方の鋼矢板１１，１１ｂの下端面１６ａよりも所定長下方に突出させる。また他方（図では下側）の鋼矢板１１，１１ｂに設ける芯出し治具２０の当接面２０ａを、この鋼矢板１１，１１ｂの上端面１６より所定長下方に後退位置させることによっても、上下側に位置する前後部の鋼矢板１１，１１ｂを当接することができる。この図１３（Ｃ）に示す鉛直精度出しのための芯出し治具２０の接合構造は、第１、第２実施形態にも適用できる。
【００２４】
【発明の効果】
以上説明したように、本発明によると、先行して打設した下側の鋼製部材の上方から、上側の鋼製部材を吊り下げて上下側の鋼製部材を接合するに際し、下側の鋼矢板の上端部を建込みガイドとして、上側の鋼製部材の下端部を所定の位置に吊り下すことができて鋼製部材の横揺れ等を簡易かつ確実に制御して位置合わせができ、かつ、上下側の各部材に設けた複数の芯出し治具の面接触を確認することで上下の部材間の鉛直精度出し作業は終了するので、従来必要とされていた現場での困難な操作を伴なう鉛直精度出し作業が不要となり、部材位置合わせが容易になる作用と相俟って、現場作業の簡略化、工期の短縮が図れる。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る鋼製部材の接合構造の平面図である。
【図２】図１の正面図である。
【図３】上下の鋼製部材が分離した状態での第１実施形態の破断斜視図である。
【図４】図３において、上下の鋼製部材が接合した状態での破断斜視図である。
【図５】図４のＡ−Ａ断面図である。
【図６】本発明の第２実施形態に係る鋼製部材の接合構造の平面図である。
【図７】図２の正面図である。
【図８】上下の鋼製部材が分離した状態での第２実施形態の破断斜視図である。
【図９】図８において、上下の鋼製部材が分離した状態でのＢ−Ｂ方向の断面図である。
【図１０】本発明の第３実施形態に係る鋼製部材の接合構造の平面図である。
【図１１】図１０の正面図である。
【図１２】上下の鋼製部材が分離した状態での第３実施形態の破断斜視図である。
【図１３】（Ａ）は図１２において、上下の鋼製部材が分離した状態でのＣ−Ｃ方向の断面図、（Ｂ）は図（Ａ）の（Ｄ）部の拡大図、図（Ｃ）は図（Ｂ）の変形例の断面図である。
【図１４】従来例に係る柱の接合構造を示す側面図である。
【図１５】図１４の平面図である。
【符号の説明】
１ 柱
２ エレクションピース
３ 取付けピース
４ ボルト
５ ウエブ
６ フランジ
７ 溶接
１０ 鋼製部材
１１ 鋼矢板
１２ 継手部
１３ 補強部材
１４ ウエブ
１５ フランジ
１６ 一端部
１７ 端部
１８ 側端面
２０ 芯出し治具[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a joining structure and a joining method of various steel members such as a retaining wall, an underground structure wall, a foundation structure, and a steel member used for a tunnel structure in the field of civil engineering and construction, and in particular, positions of upper and lower members at a site. It relates to a joining method suitable for alignment and vertical accuracy setting.
[0002]
[Prior art]
As an example of this type of conventional technology, there is an erection piece used for joining upper and lower members made of steel. As shown in FIGS. 14 and 15, this erection piece 2 is formed by joining columns of an architectural structure, for example, H-shaped columns 1 composed of a web 5 and a flange 6 as shown in FIG. This is a construction jig used when performing welding 7, and as shown in the figure, after performing vertical precision setting of the column 1 on site, it was fixed to the joint end of the column 1 by welding. The upper and lower mounting pieces 3 are sandwiched between two erection pieces 2, and the erection pieces 2 are joined by bolts 4.
[0003]
The drawback of the erection piece 2 is that it is a construction jig only for fixing the upper and lower columns 1 to the last, and the vertical accuracy of the columns needs to be performed on site.
In addition, the vertical alignment of the columns 1 at the construction site is performed by a crane operation that suspends the columns 1 and the members are brought to a predetermined position, so that the time required for the alignment is required.
[0004]
[Problems to be solved by the invention]
As a prior art closest to the present invention, there is only a construction jig used for joining columns such as the above-mentioned erection piece on site. However, in the method of joining steel members using this construction jig, it is necessary to obtain the vertical accuracy on site, and the operation of setting the vertical accuracy of the steel members by crane operation involves difficulties. There was a disadvantage that this was the case.
An object of the present invention is to provide a method for joining steel members that has solved the above-mentioned problems.
[0005]
[Means for Solving the Problems]
A first invention according to the present invention is characterized in that one side of a reinforcing member having flanges at both ends of a web is fixed to a side surface of a steel sheet pile, and one end of the steel sheet pile in a vertical direction is connected to one end of the reinforcing member. The other end of the steel sheet pile in the vertical direction is retracted from the other end of the reinforcing member, and each flange of the reinforcing member has upper and lower ends of the steel sheet pile facing each other. It is characterized in that a plurality of centering jigs that come into surface contact with each other when they come into contact with each other are provided.
[0006]
According to a second aspect of the present invention, one flange of a reinforcing member having flanges at both ends of a web is fixed to a side surface of a steel sheet pile, and an upper side to be driven later on an upper end portion of a lower steel sheet pile previously driven. At the time of suspending the steel sheet pile and joining the upper and lower ends of the upper and lower steel sheet piles and the reinforcing member, the upper end of the lower steel sheet pile projecting upward from the reinforcing member is used as a guide, and The present invention is characterized in that an upper reinforcing member protruding below the lower end portion is suspended, and a plurality of centering jigs respectively provided on the flanges of the upper and lower reinforcing members are brought into surface contact.
[0007]
According to a third aspect of the present invention, in the joining structure of steel members according to the first aspect, a reinforcing member having a flange at one end of the web is used instead of the reinforcing member having a flange at both ends of the web, and When the end is fixed to the side surface of the steel sheet pile, the flange of the reinforcing member and the steel sheet pile are provided with a plurality of centering jigs which are in surface contact with each other when the upper and lower ends of the steel sheet pile opposed in the vertical direction are brought into contact. The configuration is characterized.
[0008]
According to a fourth aspect of the present invention, in the method for joining steel members according to the second aspect, a reinforcing member having flanges at one end of the web is used instead of the reinforcing members fixed to the upper and lower steel sheet piles and having flanges at both ends of the web. The other end of this web is fixed to the side surface of the steel sheet pile, and when the upper steel sheet pile is suspended and the ends of the upper and lower steel sheet piles are joined with a groove, the upper end is placed above the reinforcing member. Using the upper end of the projecting lower steel sheet pile as a guide, suspend the upper reinforcing member projecting below the lower end face of the upper steel sheet pile, and hang the flange of each upper reinforcing member, A plurality of centering jigs are provided in surface contact with each steel sheet pile.
[0009]
According to a fifth aspect of the present invention, the side surfaces of the front steel sheet pile and the rear steel sheet pile are fixed via a web, and at one end in the vertical direction of each of the steel sheet piles, the end of the front steel sheet pile is connected to the rear steel sheet pile. At the other end in the vertical direction, the end of the front steel sheet pile is located at a position retreated from the end of the rear steel sheet pile. A plurality of centering jigs are provided which are in surface contact with each other when the front steel sheet pile and the upper and lower ends of the web are brought into contact with each other.
[0010]
According to a sixth aspect of the invention, the side surfaces of the front steel sheet pile and the rear steel sheet pile are fixed to each other via a web, and the upper front steel sheet pile is suspended from the upper end of the lower front sheet pile. When joining the upper and lower ends of the upper and lower steel sheet piles with the upper end of the lower front steel sheet pile projecting above the upper end of the rear steel sheet pile as a guide, the lower end of the rear steel sheet pile is The upper front steel sheet pile projecting below the lower end of the sheet pile is suspended, and the centering jigs provided on the upper and lower front steel sheet piles and the rear steel sheet pile are brought into surface contact with each other. Features.
[0011]
According to the present invention, the upper steel member is suspended from above the lower steel member that has been cast in advance, and when joining the upper and lower steel members, the upper end of the lower steel sheet pile is erected. As a guide, the lower end of the upper steel sheet pile can be reliably hung at a predetermined position while performing alignment, and vertical alignment work is performed by bringing a plurality of centering jigs on the upper and lower sides into surface contact. Is completed, and the work of positioning the members and the work of setting the vertical accuracy at the site are speeded up and simplified.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a steel member 10 according to a first embodiment. The steel member 10 includes a steel sheet pile 11 having joints 12 on both side edges and a reinforcing member 13. The reinforcing member 13 is made of an H-shaped steel in which flanges 15 are fixed to both ends of a web 14, and one flange 15 is fixed to a side surface 11 a of the steel sheet pile 11.
[0013]
One end (the upper end of the lower steel sheet pile 11 in FIGS. 3 and 4) 16 of the steel sheet pile 11 projects upward by about 100 mm from the end (the upper end in the figure) 17 of the reinforcing member 13. The other end of the steel sheet pile 11 (the lower end of the upper steel sheet pile 11 in FIGS. 3 and 4) 16a is higher than the end (the lower end in the figures) 17a of the reinforcing member 13. At a retracted position.
[0014]
A centering jig 20 is fixed to the side end surface 18 of the flange 15 at both ends (upper and lower ends in the drawing) 17 and 17a of the reinforcing member 13 by welding or bolting. The contact end face 20a of the tool 20 is fixed by protruding from the end face of both ends 17, 17a of the flange 15 by 0.1 to 2 mm.
[0015]
The centering jig 20 is provided for the purpose of simplifying the vertical accuracy work of the upper and lower continuous wall members at the construction site, and constitutes one of the main elements in the present invention, and the arrangement position thereof is accurately determined. I have. For this reason, when the centering jig 20 is attached, the members of the steel sheet pile 11 and the reinforcing member 13 are temporarily connected to each other in a manufacturing and processing factory, and the centering is performed. The jig 20 is fixed at a predetermined position. Therefore, at the site, the vertical accuracy between the upper and lower continuous wall members 10 confirmed in advance can be reproduced only by checking the surface contact of the contact surfaces 20a between the upper and lower centering jigs 20.
[0016]
In the first embodiment, when the upper steel member is hung by a crane and joined to the upper end of the lower steel member previously erected, the lower steel member protruding from the upper end of the reinforcing member 13. Since the upper end of the sheet pile 11 serves as a building guide, the one flange 15 of the reinforcing member 13 protruding from the lower end of the upper steel sheet pile 11 slides along the side of the upper end of the lower steel sheet pile 11. By suspending the steel sheet pile 11 while it is being moved, the upper steel sheet pile 11 does not sway in an unstable manner, and the positioning with respect to the lower steel sheet pile 11 can be performed smoothly and reliably. Further, by bringing the contact surfaces 20a of the lower and upper four centering jigs 20 into contact with each other, it is possible to quickly and easily perform the vertical accuracy setting of the ends of the upper and lower steel members.
[0017]
6 to 9 show a steel member 10 according to a second embodiment of the present invention. In the second embodiment, instead of the reinforcing member 13 having the flanges 15 at both ends of the web 14 in the first embodiment, a reinforcing member 13a having the flange 15 only at one end of the web 14 is configured. The difference from the first embodiment is that the other end 14a of the web 14 at 13a is fixed to the side surface 11a of the steel sheet pile 11 by welding 7. Further, along with the difference in the configuration, two of the four centering jigs 20 are fixed to the upper side surface and the lower side surface of the steel sheet pile 11, respectively. The other configuration is the same as that of the first embodiment, and the same components are denoted by the same reference numerals and description thereof will be omitted.
[0018]
In the second embodiment, the upper steel member is suspended by a crane from above the lower steel member previously cast and brought into contact with the contact surfaces 20a of the four centering jigs 20. As in the first embodiment, the positioning of the ends of the upper and lower steel members can be performed quickly and easily. Other functions and effects are the same as those of the first embodiment.
[0019]
FIGS. 10 to 13A and 13B show a steel member 10 according to a third embodiment of the present invention. In the third embodiment, instead of the reinforcing member 13 having the flanges 15 at both ends of the web 14 in the first embodiment, a rear straight steel sheet pile parallel to a steel sheet pile (hereinafter referred to as a front straight steel sheet pile) 11 is used. 11b, a continuous wall member 10 in which the steel sheet piles 11, 11b are fixed to each other by a web 14 and a weld 7 is formed.
[0020]
In the third embodiment, in the lower steel member 10, the upper end 16 of the front steel sheet pile 11 is formed by the upper end 16 of the rear steel sheet pile 11 b and the web 14 having the same height as the upper end 16. It protrudes above the upper end 17. In the upper steel member 10, the lower end 16a of the front steel sheet pile 11 is retracted above the lower end 16a of the rear steel sheet pile 11b and the lower end 17a of the web 14 having the same height as the lower end 16a. are doing.
[0021]
In the third embodiment, four centering jigs 20 are fixed to the upper side surface and the lower side surface of the front and rear steel sheet piles 11 and 11b, respectively. The other configuration is the same as that of the second embodiment, and the same reference numerals are given to the same components, and the description will be omitted.
[0022]
In the third embodiment, the upper steel member is suspended using a crane from above the lower steel member to be cast in advance, and the surface contact of the contact surfaces 20a of the four centering jigs 20 is determined. By confirming, the positioning work of the ends of the upper and lower steel members can be performed quickly and easily as in the first and second embodiments. Other functions and effects are the same as those of the second embodiment.
[0023]
FIG. 13C shows a modification of FIG. 13B. That is, as shown in FIG. (C), the contact surface 20a of the centering jig 20 provided on one (upper side in the figure) of the front and rear steel sheet piles 11 and 11b located on the upper and lower sides is set to the upper steel sheet pile 11, It protrudes a predetermined length downward from the lower end surface 16a of 11b. Alternatively, the contact surface 20a of the centering jig 20 provided on the other (lower side in the figure) steel sheet piles 11 and 11b may be retracted by a predetermined length below the upper end face 16 of the steel sheet piles 11 and 11b. The front and rear steel sheet piles 11 and 11b located on the upper and lower sides can be in contact with each other. The joining structure of the centering jig 20 for vertical accuracy shown in FIG. 13C can be applied to the first and second embodiments.
[0024]
【The invention's effect】
As described above, according to the present invention, when joining the upper and lower steel members by suspending the upper steel member from above the lower steel member previously cast, The upper end of the steel sheet pile is used as a erection guide, and the lower end of the upper steel member can be hung at a predetermined position, and the roll of the steel member can be easily and reliably controlled and aligned, In addition, since the vertical alignment work between the upper and lower members is completed by checking the surface contact of the plurality of centering jigs provided on each member on the upper and lower sides, difficult operations on site that were conventionally required This eliminates the need for vertical precision work associated with the above, and, together with the effect of facilitating the positioning of members, simplifies the on-site work and shortens the construction period.
[Brief description of the drawings]
FIG. 1 is a plan view of a joint structure of steel members according to a first embodiment of the present invention.
FIG. 2 is a front view of FIG.
FIG. 3 is a cutaway perspective view of the first embodiment in a state where upper and lower steel members are separated.
FIG. 4 is a cutaway perspective view of FIG. 3 in a state where upper and lower steel members are joined.
FIG. 5 is a sectional view taken along line AA of FIG. 4;
FIG. 6 is a plan view of a joint structure of steel members according to a second embodiment of the present invention.
FIG. 7 is a front view of FIG. 2;
FIG. 8 is a cutaway perspective view of the second embodiment with upper and lower steel members separated.
FIG. 9 is a cross-sectional view taken along the line BB in FIG. 8 with upper and lower steel members separated.
FIG. 10 is a plan view of a joint structure for steel members according to a third embodiment of the present invention.
FIG. 11 is a front view of FIG. 10;
FIG. 12 is a cutaway perspective view of the third embodiment with upper and lower steel members separated.
13A is a cross-sectional view in the CC direction in which upper and lower steel members are separated from each other in FIG. 12, FIG. 13B is an enlarged view of a part (D) in FIG. (C) is a sectional view of a modification of FIG. (B).
FIG. 14 is a side view showing a column joint structure according to a conventional example.
FIG. 15 is a plan view of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Column 2 Erection piece 3 Mounting piece 4 Bolt 5 Web 6 Flange 7 Welding 10 Steel member 11 Steel sheet pile 12 Joint part 13 Reinforcement member 14 Web 15 Flange 16 One end 17 End 18 Side end face 20 Centering jig

Claims (6)

鋼矢板の側面に、ウエブの両端にフランジを有する補強部材の一方のフランジが固着されており、前記鋼矢板の上下方向の一端部が前記補強部材の一端部より突出しており、前記鋼矢板の上下方向の他端部が前記補強部材の他端部より後退位置しており、前記補強部材の各フランジには、相対する前記鋼矢板の上下端部を当接するとき、互いに面接触する芯出し治具が複数設けられている構成を特徴とする鋼製部材の接合構造。One side of a reinforcing member having flanges at both ends of a web is fixed to a side surface of the steel sheet pile, and one end in the vertical direction of the steel sheet pile projects from one end of the reinforcing member, and The other end in the up-down direction is retracted from the other end of the reinforcing member, and each flange of the reinforcing member is in contact with the upper and lower ends of the steel sheet pile facing each other. A joint structure for steel members, wherein a plurality of jigs are provided. 鋼矢板の側面に、ウエブの両端にフランジを有する補強部材の一方のフランジを固着し、先行打設した下側の鋼矢板の上端部に、後から打設する上側の鋼矢板を吊り下げて、これら上下の鋼矢板および補強部材の上下端部を開先を有して接合するに際し、前記補強部材より上方に突出している下側の鋼矢板の上端部をガイドとして、上側の鋼矢板の下端部よりも下方に突出している上側の補強部材を吊り下し、上側と下側の各補強部材のフランジにそれぞれ複数設けた芯出し治具を面接触させることを特徴とする鋼製部材の接合工法。On one side of the steel sheet pile, one flange of a reinforcing member having flanges at both ends of the web is fixed, and the upper steel sheet pile to be driven later is hung on the upper end of the lower steel sheet pile previously driven. When joining the upper and lower ends of these upper and lower steel sheet piles and the reinforcing member with a groove, using the upper end of the lower steel sheet pile projecting upward from the reinforcing member as a guide, A steel member characterized by suspending an upper reinforcing member protruding downward from a lower end portion and bringing a plurality of centering jigs respectively provided on flanges of the upper and lower reinforcing members into surface contact. Joining method. 請求項１記載の鋼製部材の接合構造において、ウエブの両端にフランジを有する補強部材に代えて、ウエブの一端にフランジを有する補強部材を構成して、このウエブの他端を鋼矢板の側面に固着し、前記補強部材のフランジと前記鋼矢板には、上下方向に相対する前記鋼矢板の上下端部を当接するとき、互いに面接触する芯出し治具が複数設けられている構成を特徴とする鋼製部材の接合構造。2. The joining structure of steel members according to claim 1, wherein a reinforcing member having a flange at one end of the web is formed instead of the reinforcing member having flanges at both ends of the web, and the other end of the web is connected to a side surface of the steel sheet pile. The flange of the reinforcing member and the steel sheet pile are provided with a plurality of centering jigs which are in surface contact with each other when the upper and lower ends of the steel sheet pile opposed to each other in the vertical direction are provided. Steel member joining structure. 請求項２記載の鋼製部材の接合工法において、上下の鋼矢板に固着した、ウエブの両端にフランジを有する補強部材に代えて、ウエブの一端にフランジを有する補強部材を構成して、このウエブの他端を鋼矢板の側面に固着し、上側の鋼矢板を吊り下げて上下の鋼矢板および補強部材の端部を接合するに際し、前記補強部材より上方に突出している下側の鋼矢板の上端部をガイドとして、上側の鋼矢板の下端面よりも下方に突出している上側の補強部材を吊り下し、上側の各補強部材のフランジと、下側の各鋼矢板にそれぞれ複数設けた芯出し治具を面接触させることを特徴とする鋼製部材の接合工法。3. The method of joining steel members according to claim 2, wherein the reinforcing member having flanges at one end of the web is formed instead of the reinforcing members having flanges at both ends of the web, which are fixed to upper and lower steel sheet piles. The other end is fixed to the side surface of the steel sheet pile, and when the upper steel sheet pile is suspended and the upper and lower steel sheet piles and the end portions of the reinforcing member are joined, the lower steel sheet pile projecting upward from the reinforcing member is Using the upper end as a guide, suspend the upper reinforcing member projecting below the lower end surface of the upper steel sheet pile, and provide a plurality of flanges for each upper reinforcing member and a plurality of cores respectively provided for each lower steel sheet pile. A method for joining steel members, comprising bringing a dispensing jig into surface contact. 前部鋼矢板と後部鋼矢板の側面同士がウエブを介して固着されており、前記各鋼矢板の上下方向一端部において、当該前部鋼矢板の端部が、後部鋼矢板の端部より突出しており、上下方向他端部において、前部鋼矢板の端部が後部鋼矢板の端部より後退位置しており、前部と後部の各鋼矢板には、上下方向に相対する前部鋼矢板の上下端部を当接するとき、互いに面接触する芯出し治具が複数設けられている構成を特徴とする鋼製部材の接合構造。The side surfaces of the front steel sheet pile and the rear steel sheet pile are fixed via a web, and at one end in the vertical direction of each steel sheet pile, the end of the front steel sheet pile projects from the end of the rear steel sheet pile. At the other end in the vertical direction, the end of the front steel sheet pile is located at a position retracted from the end of the rear steel sheet pile, and the front and rear steel sheet piles have front steel sheets facing in the vertical direction. A joining structure for steel members, wherein a plurality of centering jigs are provided which come into surface contact with each other when the upper and lower ends of the sheet pile are brought into contact. 前部鋼矢板と後部鋼矢板の側面同士がウエブを介して固着されており、下側に位置する前部鋼矢板の上端部に、上側の前部鋼矢板を吊下げて上下の鋼矢板およびウエブの上下端部を接合するに際し、後部鋼矢板の上端部より上方に突出している下側の前部鋼矢板の上端部をガイドとして、後部鋼矢板の下端部が前部鋼矢板の下端部よりも下方に突出している上側の前部鋼矢板を吊り下し、上側と下側の前部鋼矢板と後部鋼矢板にそれぞれ複数設けた芯出し治具を面接触させることを特徴とする鋼製部材の接合工法。The side surfaces of the front steel sheet pile and the rear steel sheet pile are fixed via a web, and the upper front steel sheet pile is suspended at the upper end of the front steel sheet pile located on the lower side, and the upper and lower steel sheet piles are suspended. When joining the upper and lower ends of the web, the lower end of the rear steel sheet pile is guided by the upper end of the lower front steel sheet pile projecting upward from the upper end of the rear steel sheet pile. The steel characterized by suspending an upper front steel sheet pile projecting downward below and bringing a plurality of centering jigs respectively provided on the upper and lower front steel sheet piles and the rear steel sheet pile into surface contact. Joining method for manufacturing parts.
JP25623397A 1997-09-05 1997-09-05 Joining structure and joining method of steel members Expired - Fee Related JP3549373B2 (en)

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